MacBook Pro mid 2012 keeps freezing and restarting when playing League of Legends. Help please!

So, for a few days, I keep having troubles while playing League of Legends, an online game.

The Macbook keeps freezing on a screen with discontinued stripes (colours are blue green and black).

Then it restarts and here is the report I have sent Apple.

Can anyone translate it and eventually tell me what is wrong?

I have updated all of my apps and softwares. Uninstalled and reinstalled what could be.

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Here below, the "Panic Report":

Tue Jan 31 17:23:38 2017

*** Panic Report ***

panic(cpu 2 caller 0xffffff8026605ead): Kernel trap at 0xffffff809a1e40ea, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0xffffff809a1e40ea, CR3: 0x0000000026f8a002, CR4: 0x00000000001626e0

RAX: 0x00000000000001b7, RBX: 0xffffff8039783c78, RCX: 0x00000000ffffffff, RDX: 0x0000081d0000000d

RSP: 0xffffff91476c3e28, RBP: 0xffffff91476c3ea0, RSI: 0x000000000001b707, RDI: 0xffffff8039783c80

R8: 0x00007f8e58823600, R9: 0xffffff8039783c78, R10: 0x00007f8e58823600, R11: 0x0000000000000000

R12: 0xffffff8037ce27c0, R13: 0xffffff80f7d11928, R14: 0x0000000007030001, R15: 0x0000000000000000

RFL: 0x0000000000010206, RIP: 0xffffff809a1e40ea, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0xffffff809a1e40ea, Error code: 0x0000000000000010, Fault CPU: 0x2, PL: 2, VF: 5

Backtrace (CPU 2), Frame : Return Address

0xffffff91476c3ab0 : 0xffffff80264f211c

0

Impossible de rassembler les informations de la configuration du système.Model: MacBookPro9,2, BootROM MBP91.00D3.B0E, 2 processors, Intel Core i7, 2,9 GHz, 8 GB, SMC 2.2f44

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3431554638424455302D474E2D4620

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3431554638424455302D474E2D4620

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF5), Broadcom BCM43xx 1.0 (7.21.171.68.1a4)

Bluetooth: Version 5.0.2f4, 3 services, 17 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: APPLE HDD HTS547575A9E384, 750,16 GB

Serial ATA Device: MATSHITADVD-R UJ-8A8

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: FaceTime HD Camera (Built-in)

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: IR Receiver

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: USB 3.0 Bus

USB Device: SteelSeries Rival 100 Gaming Mouse

Thunderbolt Bus: MacBook Pro, Apple Inc., 25.1